EP 3655735 C0 20231101 - METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC SENSING IN A MARINE ENVIRONMENT
Title (en)
METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC SENSING IN A MARINE ENVIRONMENT
Title (de)
VERFAHREN UND SYSTEM ZUR VERTEILTEN AKUSTISCHEN ABTASTUNG IN EINER MEERESUMGEBUNG
Title (fr)
PROCÉDÉ ET SYSTÈME DE DÉTECTION ACOUSTIQUE DISTRIBUÉE DANS UN ENVIRONNEMENT MARIN
Publication
Application
Priority
- AU 2017902820 A 20170718
- AU 2018050757 W 20180718
Abstract (en)
[origin: WO2019014721A1] The present invention relates to a system for distributed acoustic sensing in a marine environment surrounding a repeater along a fibre-optic submarine communications cable. The system comprises at least one distributed acoustic sensing (DAS) unit. Each DAS unit further comprises a light source that is configured to transmit outgoing light in at least one fibre-optic sensing cable that is located in the marine environment and a receiver configured to receive reflected light that includes at least one optical property influenced by an acoustic disturbance in the marine environment. Each DAS unit further comprises an optical multiplexer for multiplexing optical signals onto the fibre-optic submarine communications cable via the repeater where the optical signals carry information on the at least influenced optical property. A method for distributed acoustic sensing in the marine environment is also disclosed.
IPC 8 full level
CPC (source: EP US)
G01H 9/004 (2013.01 - EP); G01V 1/226 (2013.01 - US); G01V 1/38 (2013.01 - US); G01V 3/08 (2013.01 - US); G01V 8/24 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Participating member state (EPC – UP)
AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI
DOCDB simple family (publication)
WO 2019014721 A1 20190124; AU 2018303340 A1 20200305; AU 2018303340 B2 20240606; CA 3070086 A1 20190124; EP 3655735 A1 20200527; EP 3655735 A4 20210421; EP 3655735 B1 20231101; EP 3655735 C0 20231101; ES 2970576 T3 20240529; JP 2020527236 A 20200903; JP 2023078151 A 20230606; JP 7235719 B2 20230308; JP 7409625 B2 20240109; SG 11202000451W A 20200227; US 11874417 B2 20240116; US 2020209417 A1 20200702
DOCDB simple family (application)
AU 2018050757 W 20180718; AU 2018303340 A 20180718; CA 3070086 A 20180718; EP 18835142 A 20180718; ES 18835142 T 20180718; JP 2020502601 A 20180718; JP 2023027537 A 20230224; SG 11202000451W A 20180718; US 201816631770 A 20180718